title: The ossification of the posterior longitudinal ligament of the spine (OPLL). The Investigation Committee on OPLL of the Japanese Ministry of Public Health and Welfare.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007564:Japan; D008022:Ligaments; D008297:Male; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000534:rehabilitation; D011859:Radiography; D013122:Spinal Diseases / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000534:rehabilitation